baber/WOPTO huggingface dataset:
Patent DE-3827893-A1 (DE)
Title: Process for currentless deposition of nickel
Inventor: BRANDENBURGER JUERGEN DR
IPC: H05K3/24
Filed: 1988-08-17
Abstract: For currentless deposition of nickel on tungsten surfaces or molybdenum surfaces, which have been applied to surfaces of ceramic objects, the ceramic objects are, preferably after thorough cleaning, for example by means of aqueous hydrofluoric acid, nucleated by dipping into an aqueous solution containing palladium ions and then introduced into a currentless nickel-plating bath. Before the nickel plating, the nucleated ceramic objects are treated in a bath with a complexing agent for palladium ions, for example in an aqueous cyanide solution.
Patent DE-3829531-A1 (DE)
Inventor: HEITKAMP HERBERT
IPC: E21D9/13
Filed: 1988-08-31
Abstract: A cooling system for a tunnel driving installation employs a heat exchanger (13) with heat exchange elements through which a coolant and/or hydraulic pressure fluid is passed. Fluid used as a flushing and support medium for the tunnel driving flows through the heat exchanger to cool the elements. <IMAGE>
Patent DE-3829780-A1 (DE)
Title: Nigericin derivatives, process for their preparation, compositions containing same and use thereof and also the use of nigericin as an antivirally active substance
Inventor: HAMMANN PETER DR
IPC: C07H19/01
Filed: 1988-09-02
Abstract: The invention relates to nigericin derivatives of the formula I <IMAGE> in which R<1> and R<2> have the meanings indicated. The nigericin derivatives according to the invention exhibit excellent antibacterial and antiviral action.
Patent DE-3833967-A1 (DE)
Title: Measuring housing
Inventor: HISS ECKART DR
IPC: G01D11/24
Filed: 1988-10-06
Abstract: The measuring housing is provided for the accommodation, in particular, of electronic sensors and is produced from an electrically non-conducting material which is resistant to high temperatures and chemical attack. It is particularly suitable for application in wet and aggressive environments and is produced in one piece, except for its rearwards opening, from PTFE. At its open end it is surrounded by a metal ring and has, inside its sealing lid, an O-ring.
Patent DE-3836585-A1 (DE)
Title: Process for the treatment and cleaning of a surface, intended for a firm metallurgical bond, of a metallurgical workpiece
Inventor: BROENNIMANN MARKUS DIPL ING
IPC: B22D19/00
Filed: 1988-10-27
Abstract: Process for the pretreatment of surfaces (2), intended for a firm metallurgical bond by soldering, joining, welding, casting-in or metal-spraying, of a workpiece consisting of a metallic base material (1) by blasting with particles suspended in a high-velocity gas jet and consisting of a carbide of high oxygen affinity, which carbide chemically reacts with the oxygen carriers present on the workpiece surface during the subsequent metallurgical bonding. The carbide chips (7) implanted in the workpiece surface (2) during the blasting ensure reactive bonding by destroying oxide skins and occlusions and by increasing the wettability. Advantageous carbides: B4C; SiC; Cr3C2; MoC; WC; TaC; TiC; HfC. <IMAGE>
Patent DE-3839495-A1 (DE)
Title: Package made of cardboard with a bottom part and a lid part
Inventor: DETZEL JOSEF
IPC: B65D5/54
Filed: 1988-11-23
Abstract: A package made of cardboard with a bottom part and a lid part, which parts are produced in each case from a single-piece blank, the bottom part comprising a bottom onto whose four free edges an upright flap is formed in each case, whereas the lid part has a lid surface and four walls which are formed thereon and project downwards. <IMAGE>
Patent DE-3840190-A1 (DE)
Title: Hearing aid to be worn behind the ear
Inventor: MUELLER MANFRED DIPL ING
IPC: H05K1/18
Filed: 1988-11-29
Abstract: The invention is based on the object of developing a known hearing aid to be worn behind the ear in such a manner that the electrical components of the amplifier circuit and the adjusting elements for the amplifier circuit belong to different constructional units which can be tested separately. The solution consists in that an elongated holder (10) carries, for example, a volume control (12) on one end area (11) and, for example, a switch (14) on the other end area (13). Between the two adjusting elements, the holder carries two or more jamming resistors (35). Using mounting elements (18, 46) of the two adjusting elements, these and the holder are fastened on a circuit board (27). The drawing shows an exploded perspective view of the circuit board, of the holder and of the adjusting elements. <IMAGE>
Patent DE-3841842-A1 (DE)
Title: Device for sucking off gaseous harmful substances
Inventor: LUDSCHEIDT HORST
IPC: B08B15/00
Filed: 1988-12-13
Abstract: In a device for sucking off essentially gaseous harmful substances, with a horizontally arranged suck-off channel connected operatively to the vacuum source and with at least one suction carriage movable axially on the suck-off channel and having a suck-off hose, there is to be provided a solution by which a surface can also be equipped with suck-off devices by simple means, that is to say a suck-off hose being available at various points in the surface. This is achieved in that the suck-off channel (2) forms the horizontal boom arm of a rotatable pivoting boom. <IMAGE>
Patent DE-3902078-A1 (DE)
Inventor: SCHOLL HANS-JOACHIM DR
IPC: C08G18/02
Filed: 1989-01-25
Abstract: A novel process for the preparation of modified, isocyanurate-containing polyisocyanates containing aliphatically and/or cycloaliphatically bonded isocyanate groups involves the chemical modification of some of the isocyanate groups of organic diisocyanates using aliphatically and/or cycloaliphatically bonded isocyanate groups in the presence of a quaternary ammonium or phosphonium fluoride as catalyst and in the presence of carbon dioxide passed into the reaction mixture. If desired after blocking using blocking agents for isocyanate groups, the modified polyisocyanates obtainable in this way can be used as the isocyanate component in polyurethane paints.
Patent DE-3904026-A1 (DE)
Inventor: GERMANN URS
IPC: E01B7/02
Filed: 1989-02-10
Abstract: PCT No. PCT/EP90/00229 Sec. 371 Date Oct. 9, 1990 Sec. 102(e) Date Oct. 9, 1990 PCT Filed Feb. 12, 1990 PCT Pub. No. WO90/09484 PCT Pub. Date Aug. 23, 1990.The antifriction insert (1) for slide surfaces of switching devices is fixed to a base member (5) in that the base member includes a recess with grooves at both sides. At least one of the grooves has upwardly open hollows (9). The antifriction insert has projections associated with these hollows (9) so that the antifriction insert can be introduced from above into the base member (5) and then only needs to be displaced by the length of the projections in order to obtain safe securing.
Patent DE-3906386-A1 (DE)
Title: Anti-theft device
Inventor: MYRACH EDMUND
IPC: G09F3/14
Filed: 1989-03-01
Abstract: To produce the locking connection in the case of an anti-theft device in the shape of a strip of single-part construction of flexible material, a locking stud is inserted into a locking stud accommodation after the strip has been bent. The locking stud runs at an angle at an acute or obtuse angle with respect to the surface of the strip. Since the locking stud has an inherent elasticity it is relatively simple to press back on insertion into the locking stud accommodation and, after overcoming the insertion resistance, returns into its original position, as a result of which it comes to bear at the inner stop of the locking stud accommodation. As a result, it is no longer possible to undo the locking connection without destroying the strip.
Patent DE-3907574-A1 (DE)
Title: Method and device for controlling the intake of water
Inventor: SCHEER SIEGFRIED
IPC: D06F39/08
Filed: 1989-03-09
Abstract: A method for controlling the intake of water to a domestic or household machine using both cold and hot water at separate but consecutive periods involves the use of machine controls for the water level and for the water temperature, respectively. The periods for the intake of hot water on the one hand and cold water on the other hand are controlled independently of the machine control before the latter is engaged. The hot water is fed into the household machine at a predetermined temperature. A wash temperature lying above this predetermined temperature is regulated by the machine control. Cold water is admixed to the hot water lying at a predetermined temperature in order to obtain a mix temperature. A wash temperature lying below the predetermined temperature and lying above the mix temperature is regulated by the machine control. A device for controlling this intake is designed as a component which is provided at the inlet and which is provided with at least one time control controlling the intake of hot water. The time control is designed as a timer switch which is connected via a time-controlled switch contact to a solenoid valve controlling the intake of hot water. The timer switch is designed as a change-over switch alternately switching between the intake of hot water on the one hand and cold water on the other hand.
Patent DE-3915763-A1 (DE)
Title: Free flying measurement system for aerodynamic investigations - has separate carrier module coupled to measurement body
Inventor: FRIEBEL WOLF-CHRISTOPH DR ING
IPC: G01M99/00
Filed: 1989-05-13
Abstract: A free-flying measurment system for conducting aerodynamic and aerothermodynamic investigations during reentry into the Earth's atmos. has a coupling to the measurement body (3) under investigation and an independent carrier module (1) which holds all the subsystems required to conduct the experiments. The sensors are mounted in the measurement body and the components for supply, control, data recording and data communications are mounted in the carrier module. USE/ADVANTAGE - Carrier module is practically independent of measurement body which can be replaced without problems. High flight stability is achieved and extreme flight attitudes can be sustained.
Patent DE-3917419-A1 (DE)
Inventor: HARA KAZUHIRO
IPC: G07D7/20
Filed: 1989-05-29
Abstract: A bill discriminating apparatus has a light emitter (5) for emitting light onto bills (B) and two color detectors (10a, 10b) for detecting light components contained in light emitted from the light emitter and transmitted through or reflected by the bills and having different wavelengths. The bill discriminating apparatus further includes two reference color detectors (7a, 7b) for detecting light components contained in light emitted from the light emitter (5) and having different wavelengths, a correction value calculator (9) for calculating a ratio of the signals output from the two reference color detectors (7a, 7b), a corrector (12) for correcting the signals output from one of the color detectors (10a, 10b) based upon the signals output from the correction value calculator, a differential amplifier (13) for differentially amplifying a difference between the signals output from the corrector and the signals output from the other of the two color detectors, a divider (14) for dividing the signals output from the differential amplifier (13) by the signals output from the other of the two color detectors and a discriminator (15) for discriminating denominations and/or genuineness of the bills based upon the signals output from the divider. <IMAGE>
Patent DE-3919050-A1 (DE)
Title: Attachment of windscreen wiper arm to support - involves hole with radial slot which fits over retaining rivet
Inventor: SCHOLL WOLFGANG
IPC: B60S1/40
Filed: 1989-06-10
Abstract: The windscreen wiper has a support (10) of U-shaped cross-section for the wiper arm (17). The wiper arm (17) has a hooked end (16) which clips over a central part (21).  This central part (21) pivots on a rivet (14) which passes through holes in the flanges of the support and is secured to these flanges. The wiper arm (17) is secured to the central part (21) by a locking member (22). The central part (21) and the locking member (22) both have radial slots (36) which run into holes (35) to enable them to be pressed over the rivet (14). USE - Windscreen wipers.
Patent DE-3920159-A1 (DE)
Title: Heat generation by flameless combustion in gas flow
Inventor: MAUS WOLFGANG
IPC: F23C13/00
Filed: 1989-06-20
Abstract: The system generates heat by flameless combustion of fuel in a gas flow contg. oxygen. The gas flows through a heater (108), along a metering unit (107) for the fuel and a first catalytically active component (109). At least part of it passes through a loop (103) and along the catalytic component under the action of a first feed unit (106). Gas, contg. oxygen, is fed into the loop and part of the gas flow is tapped off from it.
Patent DE-3920802-A1 (DE)
Title: Push=pull amplifier circuit with rest current stabilisation - generates reference signal using control current and control signal derived from amplifier output currents
Inventor: SIEGLE MARTIN DIPL ING
IPC: H03F3/30
Filed: 1989-06-24
Abstract: A reference signal is generated by a control current, and a control signal is generated by derivation from the output currents of am amplifier output stages. The reference signal and the control signal are compared in a differential stage, whose output signal is supplied to the output stages. The input of the useful signal takes place via the emitters of the differential stage. The reference signal source pref.  contains a parallel connection of a first transistor  emitter-collector path with a series connection of a second transistor and a resistor, with the transistor switched as a diode. The junction point of the resistor and mm second transistor is coupled to the base of the first transistor. ADVANTAGE - Simple design for quiescent current stabilisation.
Patent DE-3929551-A1 (DE)
Inventor: MOLDENHAUER HERMANN
IPC: F16K31/40
Filed: 1989-09-06
Abstract: A magnetic armature controlled servo valve, activated by its own medium, having a differential piston (2) which supports the valve plate (3) and on whose one side there is arranged a surge chamber (5) which is connected to the valve inlet (Z) and can be connected via the valve seat (4) to the valve outlet (A) and on whose other side there is arranged a control chamber (6) which is connected via a relief hole (2.1), arranged in the differential piston, to the valve outlet (A) and via a control hole (2.2) to the surge chamber (5). The relief hole (2.1) is closed by means of a magnetic armature seal (8.1), arranged on a magnetic armature (8), in the unenergised state of the magnetic coil (11), by the force of a first spring element (9) acting on the magnetic armature (8), and is opened in the energised state of the magnetic coil. The differential piston (2) is under the influence of the force of a second spring element (7) in the opening direction of the valve plate (3), the force effect of which spring element (7) is less than that of the first spring element (9). A roller diaphragm (7) which is connected to the differential piston (2), separates the surge chamber (5) from the control chamber (6) and is constructed such that the valve plate (3) is in the opened position when it is in its destressed quiescent position, is used as the second spring element. The valve hence opens reliably even in the case of a very low medium pressure. <IMAGE>
Patent DE-3930689-A1 (DE)
Title: Rotating machine vibration spectrum analyser - contains frequency code converter driven by frequency multiplier with gain dependent on desired sensitivity
Inventor: KULIKOV VIKTOR VASILEVIC
IPC: C09K23/14
Filed: 1989-09-14
Abstract: A rotating machine vibration spectrum analyser contains a chopper converter (1) connected to a low pass filter (2), an a-d converter (3), a computer (4), a recording device (5), a  series circuit contg. a ratemeter (8) and a frequency multiplier (7) and a control unit (6). It also contains a series circuit contg. a frequency code converter (9) and switch (10). The frequency code converter is driven by the frequency multiplier whose multiplication factor depends on the desired analysis resolution. USE/ADVANTAGE - Testing machines or structures for vibration and shock loading, esp. for rotating machine vibration spectrum analysis. Automatic resolution and transmission region control are achieved.
Patent DE-3931611-A1 (DE)
Title: Rotational force intensifier using permanent magnets - maintaining torque and RPM by aligned and directed magnetic fields with motor or muscle power starting
Inventor: SCHIEK ERICH
IPC: H02K53/00
Filed: 1989-09-22
Abstract: Upon reaching steady r.p.m. at constant torque, the driving power still required from the machines or the devices driven by muscle power, pref. a bicycle, is reduced by the rotationally directed magnetic force fields produced by the rotating and fixed permanent magnets (46, 47), so that the torque and r.p.m.  stay practically the same. A number of permanent magnets is arranged as operating elements so that the same polarisation of the permanent magnets repel to produce a dynamic repulsing alternating effect of their force fields. The repulsion on one side of the force fields of the permanent magnets arranged on the stator and on the other side on the force fields of the permanent magnets arranged on the rotor intensify the permanent magnetic rotational power. USE/ADVANTAGE - Machines driven by mechanical or electrical power, or muscle power. Overcomes disadvantages posed by, e.g. "weight and size of flywheels or e.m. NC modules. Frictionless and low losses.
Patent DE-3932439-A1 (DE)
Title: Engine cylinder head with auxiliary chamber - has gap between chamber insert flange and head overlapping cylinder bore
Inventor: MATSUNO SADAKI
IPC: F02F1/24
Filed: 1989-09-28
Abstract: The engine cylinder head has auxilary combustion chamber comprises a main body (10) containing an insert (36) whose lower face is towards the cylinder bore (14), and in which the auxilary chamber (26), connected to the bore, is formed. A gasket (18) incorporates a sealing ring (40) round the bore periphery. The insert has a flange, by which it is a press-fit in a recess (34) in the main body. The top surface of the flange is also in close contact with the surface of the recess.  A gap (g) is formed between this flange surface and that of the recess, and within an area where it overlaps the cylinder bore. ADVANTAGE - No metal fatigue in head round auxillary chamber due to heat distortion.
Patent DE-3933229-A1 (DE)
Title: Elongate superconductive article - comprising internally oxide-coated corrugated metal tube
Inventor: MADRY PETER DIPL ING
IPC: H01L39/24
Filed: 1989-10-05
Abstract: An elongated superconductive article consists of a corrugated metal tube coated with a mixed oxide of transition temp. at least 100 K. The novelty is that the coating is produced on the inner surface of the metal tube. USE/ADVANTAGE - The superconductive article is useful for cables of unlimited length and high flexibility. The internal  superconductive layer is protected against mechanical damage and against moisture and gases and is simple to maintain under a protective gas by sealing the tube ends.
Patent DE-3936493-A1 (DE)
Title: Sausage packing made of film tubing
IPC: B65D85/08
Filed: 1989-11-02
Abstract: Packing made of film tubing has at least two transparent or colouring layers, reinforced if necessary with fibres, and is used in partic. for sausage casing. In its construction its outer layer can be removed from the inner layer and at least one tear-off thread is either in the outer or between the inner and outer layer.The tear-off thread can be disposed in any desired direction, composite film gives complete protection from the ingress of bacteria to the contents. Total thickness is less than that of existing counterparts, as the outer layer (which provides the protection from handling) also aids in holding the internal pressure of the contents. All the usual materials can be used e.g. polyamide, polyethylene or fibre-reinforced cellulose. The two layers can be different material; they can be bonded together by a strip-off adhesive or by a suitable physical effect e.g. electrical charging.
Patent DE-3939102-A1 (DE)
Title: Friction wheel gearing with housing - has two shafts with pair of planet pinions and friction wheels
Inventor: STUBENRUSS PAUL
IPC: F16H15/52
Filed: 1989-11-25
Abstract: The friction wheel gearing consists of a housing (1) in which is pivot mounted a first shaft (3) joined to a pinion cage (9) around which it moves. At least one pair of planet pinions (17,18) are joined together.  At least one of the two rotary shafts (3,4) is mounted in the housing (1) so that it can move axially. The connecting axle of each pair of planet pinions is movably linked on a plane going through the axis fixed by the first and second axle (3,4).  A first and second friction wheel line are formed, with a second transfer track (20) acting on the planet pinions (18) facing one side, while a first reaction track (19) acts in conjunction with the planet pinions (17) on the other side. USE/ADVANTAGE - The gearing is made of a min. of parts economically and needs little maintenance and can convert high torques.
Patent DE-3940726-A1 (DE)
Title: Articulated support for jib of jib crane - consists of first swinging arm which carries second swinging arm at outer end
Inventor: PRIEMER HANS-PETER DIPL ING
IPC: B66C23/50
Filed: 1989-12-09
Abstract: A jib crane has a base (1) to which radially aligned supporting arms are attached.  The base supports a vertical shaft (3) which is provided with bearings (5) for a first swinging arm (4). A second shaft (6) at the end of the first arm (4) forms a bearing for a second swinging arm (7).  The crane jib (16) is mounted on a support (10) on the outer end of this second swinging arm (7).  The support has a vertically adjustable shaft (11) with a domed upper end (15) on which the jib (16) is supported. USE/ADVANTAGE - The crane jib can be more compactly stowed in its chassis to facilitate transport.
Patent DE-3941694-A1 (DE)
Title: Fireplace room heater system - has heat exchanger fitted between flue and extension flue into chimney
Inventor: ANKARA UESTUEN DIPL PHYS DR
IPC: F24B1/188
Filed: 1989-12-18
Abstract: The fireplace room heater has a smoke flue and a chimney extension flue. A heat exchanger (7), with a smoke conducting surface, is fitted between the flue (9) and the extension flue (10). The fire is laid on a grate behind a protective screen or glass (1) in a box with upright sides (2) and a flat roof (3). The flue (9) leaves the box through the flat roof and may contain a catalyst to help complete combustion and reduce the CO level. The heat exchanger has a narrow flat passage for the flue gases, giving max. heat exchange surface. USE/ADVANTAGE - Improved heat radiation into the room compared with totally enclosed stove heaters.
Patent DE-4000050-A1 (DE)
Title: Tool for rock cutting or crushing machine - is retained in tool holder by two half rings which are held together by spring ring
Inventor: DICHTL RUDOLF
IPC: E21C35/197
Filed: 1990-01-03
Abstract: The round tool for rock cutting or rock crushing has a rotationally symmetric body with a pointed tip (4) and a shaft (5). The shaft (5) fits in the bore (6) in the tool holder in which it is free to rotate and has axial play. The shaft (5) has a shoulder (7) at the end nearer to the tip (4). The other end of the shaft (5) has a circumferential groove for a retaining ring (10). This retaining ring consists of two half rings (10a) which are held together by a spring ring which fits in an annular groove in one face of the ring (10). USE - Rock cutting and crushing.